Is this how all new homes should be built in 2023? (Case Study)

MVHR kitchen extract grille with grease filter in luxury home

Heat, Space and Light Ltd has completed the design, supply and commissioning of a Passivhaus-specification MVHR ventilation system for a luxury new build in the northwest of England. The home was also tested by our building airtightness team and achieved an incredibly airtight result of 0.76 m3hr/m2 @50Pa. It’s only slightly shy of a fully-certified … Read more

Is my home too draughty for MVHR?

Airtightness pressure test kit installed in retrofit home achieving 1 score

As much as 25% of the heat loss of a building is via air leakages in the building fabric (ie, draughts). The airtightness of the building fabric is therefore an important metric to measure and improve as much as possible when building or renovating a home. Equally, a more airtight building also improves comfort, acoustics … Read more

Forensic airtightness test gives 30% lifetime heating bill savings

Airtightness Test Kit mounted in hallway of London retrofit 2021

Heat, Space and Light Ltd technicians have conducted forensic airtightness testing on a renovated London Victorian end-of-terrace. The results of the four-hour visit will have improved its comfort, energy efficiency and acoustics by up to 30 per cent, and lowered the home’s heating bills for life. The forensic airtightness pressure test was conducted over four … Read more

Cotswold new build is 55x more airtight than Building Regs and 3x more airtight than Passivhaus

It is subtle and understated in its impact on UK housing, but this new build bungalow home is one of the most energy efficient buildings in the world – and represents the future of housebuilding in the UK and Europe. We pressure tested the home this December using a calibrated airtightness testing fan and it … Read more

Completing my ATTMA Airtightness Testing Training for New Builds and Forensic Testing

Intello membrane on a roof that HSL tested for airtightness forensic analysis

If you would like to learn more about what’s involved during a building airtightness test in the UK, please read on. If you have a new build project or renovated building which requires an airtightness test for any reason, please contact me on Patrick [@] Heatspaceandlight.com for pricing. Any new build in the UK has … Read more

The four ways dodgy builders ruin new-build low energy homes

Not many UK builders have embraced PassivHaus principles yet. Below¬†are a few ways that builders in the UK can ruin low energy homes, either by ignoring or failing to understand the new wave of low energy design and build techniques that help create modern, ultra-comfortable, money-saving eco homes. 1) Ignoring the airtightness membrane UK Building … Read more